Okay - I'll first copy all the menu files to the update folder and then the menu folder in the games folder.
- Delete the (old) "sd:\games\menu" directory completely.
- Copy BOTH the firmware file AND the entire (new) menu directory to the "sd:\update\" directory.
- Power on the NG and WAIT (do not panic because of scrambled grafix and power down before menu has fully loaded)!
IMPORTANT!!!
Notice that with new firmware you dont need to copy the menu in both \game\menu and update\menu. Just copy in \update\menu
Finally (and potentially optionally) I would clear my NVRAM.
I wanted to comment on my file system. When I loaded up the SD card, I noticed that there was no \games\menu directly on the card. There was also no update\menu folder. Are these auto generated by the cart, or is that a set of files that I needed to add from somewhere? I didn't see that mentioned in the instructions.
Update: I see a file with "menu" in the name in the first page of this thread:
mediafire.com/file/ighja4ukcr9ojhj/menu_20180401-A.7z
Was this the menu files I kept hearing about from you guys? I honestly couldn't follow because I didn't know I was supposed to load this file into the SD card before plugging in the cart.
I now have the menu folder inside of "update". I also cleared my NVRAM (backup ram). After that, I installed the cart in the second slot behind my AOF3 cart.
Now when I power on, the AOF3 cart runs through part of its demo, then glitches out back to the Unibios screen, then Neo Geo screen. Once it finished displaying the SNK logo for AOF3, everything glitches out and the screen starts to reset multiple times in succession.
When I remove the multicart, the issues stop.
Update 2: I powered back on, AOF3 glitched once back to Unibios, AOF3 demo ran all the way through. I got to darksoft cart and saw a cleaner menu, though somewhat glitched out (attached). I started adjusting the menu settings, changing music tracks to hear it. All of a sudden, the screen glitched out and performed the multiple resets again until I powered off.
I'm not sure what is going on. Not sure if my Unibios is to blame, though once the cart is removed, I don't get the glitches.
Update 3: Tried again. AOF demo loaded fine. Darksoft multicart loaded much cleaner. I tried setting menu again to off animations and music. I move the cursor to Exit and Program games, and then the screen glitches back out to Unibios. Once that happens, the screen glitch resets multiple times again.